Comparison with Other Libraries

How does @warlock.js/cache compare to other popular Node.js cache libraries?

Quick Comparison Table

| Feature | @warlock.js/cache | node-cache | cache-manager | keyv | lru-cache | ioredis | |---------|-------------------|------------|---------------|------|-----------|---------| | Multiple Drivers | ✅ 7 built-in | ❌ Memory only | ✅ Via adapters | ✅ Via adapters | ❌ Memory only | ❌ Redis only | | Cache Tags | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | | Similarity Retrieval | ✅ Memory + pgvector | ❌ | ❌ | ❌ | ❌ | ❌ | | Event System | ✅ 9 types | ⚠️ 4 basic | ❌ | ❌ | ❌ | ✅ Redis events only | | Stampede Prevention | ✅ Built-in | ❌ | ❌ | ❌ | ❌ | ❌ | | Atomic Operations | ✅ Redis native | ❌ | ❌ | ❌ | ❌ | ✅ Low-level | | TypeScript | ✅ First-class | ⚠️ Definitions | ⚠️ Definitions | ✅ Native | ✅ Native | ✅ Native | | Memory Limits | ✅ All memory drivers | ✅ | ❌ | ❌ | ✅ | N/A | | Hierarchical Keys | ✅ Namespaces | ❌ | ⚠️ Limited | ✅ | ❌ | ❌ | | TTL Support | ✅ All drivers | ✅ | ✅ | ✅ | ✅ | ✅ | | High-Level API | ✅ | ✅ | ✅ | ✅ | ✅ | ❌ | | Weekly Downloads | New | ~2.5M | ~1M | ~500K | ~35M | ~8M |

Detailed Feature Comparison

Multiple Drivers

@warlock.js/cache:

• ✅ 7 built-in drivers: Memory, Redis, File, LRU, Memory Extended, Null, Postgres (with optional pgvector)
• ✅ Switch drivers with zero code changes
• ✅ Framework-agnostic

node-cache:

• ❌ Memory only

cache-manager:

• ✅ Multiple drivers via store adapters
• ⚠️ Requires installing separate adapter packages

keyv:

• ✅ Multiple drivers via adapters
• ⚠️ Requires installing separate adapter packages

lru-cache:

• ❌ Memory only

ioredis:

• ❌ Redis only

Cache Tags

@warlock.js/cache: ✅ First Node.js cache library with comprehensive tag support

const tagged = cache.tags(['users', 'profiles']);
await tagged.set('user.123', data);
await tagged.invalidate(); // Clears all tagged entries

All others: ❌ No tag support

Event System

@warlock.js/cache: ✅ 9 event types (hit, miss, set, removed, flushed, expired, connected, disconnected, error)

node-cache: ⚠️ 4 basic events

Others: ❌ No events or only Redis-specific events

Stampede Prevention

@warlock.js/cache: ✅ Built-in with remember() method

await cache.remember('key', 3600, async () => {
  return await expensiveOperation(); // Only called once even with concurrent requests
});

All others: ❌ No stampede prevention

Atomic Operations

@warlock.js/cache: ✅ Redis-native atomic operations, cross-driver conditional writes

await cache.increment('counter');                                         // Redis INCRBY
await cache.set('lock', 'val', { onConflict: 'create', ttl: '30s' });     // Redis SET … NX, emulated elsewhere
await cache.update<User>('user.1', (u) => ({ ...u, seen: Date.now() })); // chain-locked read-modify-write

ioredis: ✅ Low-level atomic commands (must use directly)

Others: ❌ No atomic operations

TypeScript Support

@warlock.js/cache: ✅ TypeScript-first design with full type safety

node-cache / cache-manager: ⚠️ Community type definitions

keyv / lru-cache / ioredis: ✅ Native TypeScript support

Use Case Recommendations

@warlock.js/cache includes:

• Cache tags for selective invalidation
• 9 event types for observability
• Built-in stampede prevention with remember()
• Atomic Redis operations without low-level code
• 7 drivers with consistent API
• Similarity retrieval (memory brute-force + pgvector-backed Postgres)
• TypeScript-first design

node-cache: Simple memory-only implementation. Mature (2.5M weekly downloads).

cache-manager: Supports multiple drivers via adapters. Requires separate adapter packages.

keyv: Minimal API with adapter-based drivers.

lru-cache: Optimized LRU algorithm for memory-only use.

ioredis: Direct Redis access. Requires understanding Redis command set.

Performance Comparison

Memory Operations

| Library | Get (O complexity) | Set (O complexity) | Notes | |---------|-------------------|-------------------|-------| | @warlock.js/cache | O(1) | O(1) | With maxSize: LRU eviction | | node-cache | O(1) | O(1) | Simple Map-based | | lru-cache | O(1) | O(1) | Optimized LRU algorithm | | cache-manager | O(1) | O(1) | Depends on store |

Redis Operations

| Library | Atomic Operations | Network Efficiency | |---------|------------------|-------------------| | @warlock.js/cache | ✅ Native (INCRBY, SET NX) | Optimized batching | | ioredis | ✅ Full Redis | Low-level control | | cache-manager | ❌ | Varies by store | | keyv | ❌ | Single operations |

Differentiators

@warlock.js/cache includes features less common in Node.js cache libraries:

1. Cache Tags - Selective invalidation of related entries
2. Stampede Prevention - Built-in remember() pattern
3. Event System - 9 event types for observability
4. Atomic Operations - Redis INCRBY, SET NX without low-level code
5. 7 Built-in Drivers - Memory, Redis, File, LRU, Memory Extended, Null, Postgres (with pgvector option)
6. Similarity Retrieval - similar() method for vector-based lookups; brute-force on memory drivers, pgvector ANN index on Postgres
7. TypeScript-first - Full type safety from design